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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-00-562-3438 (2-345E540-8)

NIIN: 00-562-3438
In stock
NSN: 5331-00-562-3438
FSC Code: 5331
MPN: 2345E5408

5331-00-009-0533 (2-345)

NIIN: 00-009-0533
In stock
NSN: 5331-00-009-0533
FSC Code: 5331
MPN: 2345

5331-01-065-7429 (2-345N674-70)

NIIN: 01-065-7429
In stock
NSN: 5331-01-065-7429
FSC Code: 5331
MPN: 2345N67470

5331-01-487-4635 (010-050-00)

NIIN: 01-487-4635
In stock
NSN: 5331-01-487-4635
FSC Code: 5331
MPN: 01005000

5331-01-524-8032 (010-045-00)

NIIN: 01-524-8032
In stock
NSN: 5331-01-524-8032
FSC Code: 5331
MPN: 01004500

5331-00-865-8875 (2-346)

NIIN: 00-865-8875
In stock
NSN: 5331-00-865-8875
FSC Code: 5331
MPN: 2346

5331-00-599-0936 (2-345N951-75)

NIIN: 00-599-0936
In stock
NSN: 5331-00-599-0936
FSC Code: 5331
MPN: 2345N95175

5331-01-481-8612 (01005682-013)

NIIN: 01-481-8612
In stock
NSN: 5331-01-481-8612
FSC Code: 5331
MPN: 01005682013

5331-01-481-8605 (01005682-130)

NIIN: 01-481-8605
In stock
NSN: 5331-01-481-8605
FSC Code: 5331
MPN: 01005682130

5331-00-184-3472 (2-345V0747-75)

NIIN: 00-184-3472
In stock
NSN: 5331-00-184-3472
FSC Code: 5331
MPN: 2345V074775

5331-01-008-6817 (2-346)

NIIN: 01-008-6817
In stock
NSN: 5331-01-008-6817
FSC Code: 5331
MPN: 2346

5331-01-217-9096 (2-346)

NIIN: 01-217-9096
In stock
NSN: 5331-01-217-9096
FSC Code: 5331
MPN: 2346

5331-00-579-3161 (2-346)

NIIN: 00-579-3161
In stock
NSN: 5331-00-579-3161
FSC Code: 5331
MPN: 2346

5331-00-057-3984 (2-346B278-7)

NIIN: 00-057-3984
In stock
NSN: 5331-00-057-3984
FSC Code: 5331
MPN: 2346B2787

5331-01-129-3156 (2-346L1223-60)

NIIN: 01-129-3156
In stock
NSN: 5331-01-129-3156
FSC Code: 5331
MPN: 2346L122360

5331-01-007-4910 (2-346C147-7)

NIIN: 01-007-4910
In stock
NSN: 5331-01-007-4910
FSC Code: 5331
MPN: 2346C1477

5331-00-536-6495 (2-346E515-80)

NIIN: 00-536-6495
In stock
NSN: 5331-00-536-6495
FSC Code: 5331
MPN: 2346E51580

5331-01-185-3439 (2-346N865-65)

NIIN: 01-185-3439
In stock
NSN: 5331-01-185-3439
FSC Code: 5331
MPN: 2346N86565

5331-01-377-2835 (02-019682PIECE40)

NIIN: 01-377-2835
In stock
NSN: 5331-01-377-2835
FSC Code: 5331
MPN: 02019682PIECE40

5331-00-576-9729 (2-347)

NIIN: 00-576-9729
In stock
NSN: 5331-00-576-9729
FSC Code: 5331
MPN: 2347

5331-01-433-1748 (01-006869-045)

NIIN: 01-433-1748
In stock
NSN: 5331-01-433-1748
FSC Code: 5331
MPN: 01006869045

5331-01-456-4406 (D1-025008ITEMNO.62)

NIIN: 01-456-4406
In stock
NSN: 5331-01-456-4406
FSC Code: 5331
MPN: D1025008ITEMNO62

5331-01-420-6059 (01-006869-053)

NIIN: 01-420-6059
In stock
NSN: 5331-01-420-6059
FSC Code: 5331
MPN: 01006869053

5331-01-456-4402 (01-006869-089)

NIIN: 01-456-4402
In stock
NSN: 5331-01-456-4402
FSC Code: 5331
MPN: 01006869089

5331-01-433-6861 (01-006869-092)

NIIN: 01-433-6861
In stock
NSN: 5331-01-433-6861
FSC Code: 5331
MPN: 01006869092

5331-01-377-2833 (02-019682PIECE5)

NIIN: 01-377-2833
In stock
NSN: 5331-01-377-2833
FSC Code: 5331
MPN: 02019682PIECE5

5331-01-160-4328 (2-347N304-75)

NIIN: 01-160-4328
In stock
NSN: 5331-01-160-4328
FSC Code: 5331
MPN: 2347N30475

5331-01-005-3216 (2-347-V747-75)

NIIN: 01-005-3216
In stock
NSN: 5331-01-005-3216
FSC Code: 5331
MPN: 2347V74775

5331-00-995-2596 (2-348)

NIIN: 00-995-2596
In stock
NSN: 5331-00-995-2596
FSC Code: 5331
MPN: 2348

5331-00-927-4308 (2-348)

NIIN: 00-927-4308
In stock
NSN: 5331-00-927-4308
FSC Code: 5331
MPN: 2348

5331-00-196-5337 (2-348)

NIIN: 00-196-5337
In stock
NSN: 5331-00-196-5337
FSC Code: 5331
MPN: 2348

5331-00-848-7540 (2-347N951-75)

NIIN: 00-848-7540
In stock
NSN: 5331-00-848-7540
FSC Code: 5331
MPN: 2347N95175

5331-00-997-6947 (234-8307)

NIIN: 00-997-6947
In stock
NSN: 5331-00-997-6947
FSC Code: 5331
MPN: 2348307

5331-01-127-3797 (2-348N674-70)

NIIN: 01-127-3797
In stock
NSN: 5331-01-127-3797
FSC Code: 5331
MPN: 2348N67470

5331-01-289-2641 (2-348N0674-70)

NIIN: 01-289-2641
In stock
NSN: 5331-01-289-2641
FSC Code: 5331
MPN: 2348N067470

5331-01-005-3205 (2-348V0747-75)

NIIN: 01-005-3205
In stock
NSN: 5331-01-005-3205
FSC Code: 5331
MPN: 2348V074775

5331-00-579-3157 (2-349)

NIIN: 00-579-3157
In stock
NSN: 5331-00-579-3157
FSC Code: 5331
MPN: 2349

5331-01-005-3206 (2-349)

NIIN: 01-005-3206
In stock
NSN: 5331-01-005-3206
FSC Code: 5331
MPN: 2349

5331-00-465-6648 (2-349E515-8)

NIIN: 00-465-6648
In stock
NSN: 5331-00-465-6648
FSC Code: 5331
MPN: 2349E5158

5331-01-288-1088 (2349H10)

NIIN: 01-288-1088
In stock
NSN: 5331-01-288-1088
FSC Code: 5331
MPN: 2349H10

5331-01-326-1898 (235/33)

NIIN: 01-326-1898
In stock
NSN: 5331-01-326-1898
FSC Code: 5331
MPN: 23533

5331-01-334-0369 (23502R1)

NIIN: 01-334-0369
In stock
NSN: 5331-01-334-0369
FSC Code: 5331
MPN: 23502R1

5331-01-007-4911 (2-350C147-7)

NIIN: 01-007-4911
In stock
NSN: 5331-01-007-4911
FSC Code: 5331
MPN: 2350C1477

5331-01-025-1904 (2-351)

NIIN: 01-025-1904
In stock
NSN: 5331-01-025-1904
FSC Code: 5331
MPN: 2351

5331-01-005-3207 (2-350V0747-75)

NIIN: 01-005-3207
In stock
NSN: 5331-01-005-3207
FSC Code: 5331
MPN: 2350V074775

5331-01-386-2624 (01-0178)

NIIN: 01-386-2624
In stock
NSN: 5331-01-386-2624
FSC Code: 5331
MPN: 010178

5331-01-407-3969 (2-171C873-70)

NIIN: 01-407-3969
In stock
NSN: 5331-01-407-3969
FSC Code: 5331
MPN: 2171C87370

5331-01-527-1533 (0-10-2-20)

NIIN: 01-527-1533
In stock
NSN: 5331-01-527-1533
FSC Code: 5331
MPN: 010220